A/C problem

So, I have this var listed above and I do love it even its old. Runs solid and serves my needs ATM. I bought it a year ago and been working perfectly (as far as I know). The A/C was blowing ice cold most of the time and when it went hot sometimes all I had to do is just turn it off and back on again or maybe few times and it kicks back in. 2 weeks ago it wont blow cold at all so I checked and I found out that the driver side fan wont turn so I changed both of them. Then I noticed that the ac clutch wont engage so I recharged it and it worked for like 5 minutes blew cold air and that was the last time it worked since. I changed the A/C relay and the low speed relay also I changed the coolant temperature switch and checked all the fuses in and out and nothing. I hooked it up to a computer diagnostic tool and no error codes. Now when I jump the A/C relay it engages and when I do the same to the low speed relay the fans spin. Also when I jumped the A/C pressure switch the fans did spin and when I hot wired the compressor it looks like its spinning but still not cooling. The mechanic said that the coolant level is good ( I never saw it myself ) and the A/C should kick in at least. I just want to know what else to check or if I can make lie a manual control switch to turn it on from inside the car.
Thanks